G6 V6-3.9L (2009)
to burn away but the beads remain, making the sensor easier the remove. New, or service replacement sensors already have the compound applied
to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must be have
anti-seize compound applied before the reinstallation.
7. If reinstalling the old HO2S, coat the threads with anti-seize compound GM P/N 12377953 or equivalent.
8. Install the lower right and left HO2S (1, 2) using the J 39194-B .
Tighten the sensor to 42 Nm (31 lb ft).
9. Connect the lower left HO2S electrical connector (1).
10. Install the lower left HO2S CPA retainer (2).
11. Connect the lower right HO2S electrical connector (2).
12. Install the lower right HO2S CPA retainer (1).
13. Install the muffler assembly. Refer to Exhaust Muffler Replacement (LE5 With MH8) (See: Muffler/Service and Repair)Exhaust Muffler
Replacement (2.4L, 3.5L, and 3.9L) (See: Muffler/Service and Repair)Exhaust Muffler Replacement (LY7, LZ9) (See: Muffler/Service and
Repair).